Tungsten Carbide Insert Bits(TCI), buy Rock BitsIADC 637,12 1/4 Tungsten Carbide Insert Tricone Bit(TCI),Drilling bits, on China Suppliers Mobile

Product Details

Product Pictures

Advanced processing

1. Cutting Structure of this series tricone rock bit :

The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.

2. Gauge Structure of this series tricone rock bit :

Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

3.Bearing Structure of this series tricone rock bit :

High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.

4.Product Application of this series tricone rock bit :

It is suitable for downhole motor and high speed applications.

Size&Type

Size		Bit Type
In.	mm	Bit Type
6	152.4	4.7,517, 537, 617, 637
6 1/2	165.1	437,517,537,617,637
7 1/2	190.5	517, 537
8 1/2	215.9	437, 535,517, 537,617,637
9 1/2	241.3	437, 517,537,617,637
9 5/8	244.5	517,535,537
9 7/8	250.8	517,537
12 1/4	311.1	437, 517,535, 537,617,637
17 1/2	444.5	517,535,537

Technical Date

Rock formation		Bit type	Bit size		Drilling weight	Rotary speed
Rock formation		Bit type	mm	inch	kN/mm	r/min
Very soft	Soft Marl, Clays, Sands, Salts etc.	1	187.3~346.1	7 3/8~13 5/8	441~735	120~50
soft	Clays, Soft Shale, Marl, Sands, Salts etc.	2	95.2~174.6	3 3/4-6 7/8	245-490	100-50
soft	Clays, Soft Shale, Marl, Sands, Salts etc.	2	187.3~346.1	7 3/8-13 5/8	490-784	90-40
Medium soft	Shale, Marl, Sandstone, Soft Limestone etc.	3	95.2~174.6	3 3/4-6 7/8	245-490	80-40
Medium soft	Shale, Marl, Sandstone, Soft Limestone etc.	3	187.3~311.1	7 3/8- 12 1/4	490-784	80-40
medium	Hard Shale, Limestone, Medium/Hard Sandstone etc.	4	95.2~174.6	3 3/4-6 7/8	294-539	80-60
medium	Hard Shale, Limestone, Medium/Hard Sandstone etc.	4	187.3~241.3	7 3/8-9 1/2	539-833	60-40
medium hard	Hard Dolomite, Limestone, Hard Sandy, Rock etc.	5	95.2~174.6	3 3/4-6 7/8	294-539	80-60
medium hard	Hard Dolomite, Limestone, Hard Sandy, Rock etc.	5	187.3~241.3	7 3/8-9 1/2	539-833	60-40
hard	Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.	6	95.~-174.6	3 3/4-6 7/8	294-539	80-40
hard	Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.	6	187.3-215.9	7 3/8-8 1/2	580-882	60-40
Very hard	Quartzite, Chert, Basalt Granites, Pyrites etc.	7	95.2-174.6	3 3/4-6 7/8	294-539	80-40